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Finding the Fourth Proportional to 368,593.38, 508,679.73 and 225,330.30

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Solution

The fourth proportional to 368,593.38, 508,679.73 and 225,330.30 is: 310,968.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,593.38 : 508,679.73 = 225,330.30 : x
  2. Step 2: Convert to fraction form
    368,593.38/508,679.73 = 225,330.30/x
  3. Step 3: Cross multiply
    368,593.38x = 508,679.73 × 225,330.30
  4. Step 4: Simplify right side
    368,593.38x = 114,620,956,164.82
  5. Step 5: Solve for x
    x = 114,620,956,164.82/368,593.38
  6. Step 6: Final answer
    x = 310,968.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.